Tickell, S. 2009, Technical report no. 27/2008D
The Daly Basin is a geological basin that contains two major aquifers in limestone formations. Groundwater cannot move between the aquifers as they are separated by impervious siltstone formations. Significant recharge to the aquifers occurs in most years. The groundwater drains to the Daly River and its major tributaries, causing them to flow all year round. These permanent treams support distinctive ecosystems both within the river and along its banks. The aquifers store and transmit significant volumes of groundwater. Quantities suitable for irrigation can often be extracted from individual bores. There is a small but increasing agricultural industry. Water allocation plans are currently being developed to ensure that both surface waters and groundwaters are used sustainable. Maintenance of dry season river flows and of the ecosystems that they support are the main guiding principles behind water management in the basin.
Copy available on NRETA maps and in NRETAS and DPI Libary
http://www.ntlis.nt.gov.au/hpa-services/techreport?report_id=WRD08027
Thursday, May 21, 2009
Tuesday, May 5, 2009
River Stability Issues in Northern Australia
Valentine, Eric M. 2006, in 30th Hydrology & Water Resources Symposium: Past, Present & Future. p. 568 -575
The Northern Territory Government plans to convert pastoral leases in the Daly River region to agriculture. Prior to this development it is important to understand the sediment dynamics of the system and the potential impacts on the river of water abstraction for irrigation. There is considerable debate about the effects that potential development of the river basin may have on the river channel. It has been suggested that there has been considerable siltation in the estuary since 1880, and recent observations of the channel indicate that there are instabilities in the channel plan-form. The question as to whether these instabilities are driven by hydrological or anthropogenic influences is crucial to the decision on future development and how it should be managed.
Source: Informit Engineering Collection.
The Northern Territory Government plans to convert pastoral leases in the Daly River region to agriculture. Prior to this development it is important to understand the sediment dynamics of the system and the potential impacts on the river of water abstraction for irrigation. There is considerable debate about the effects that potential development of the river basin may have on the river channel. It has been suggested that there has been considerable siltation in the estuary since 1880, and recent observations of the channel indicate that there are instabilities in the channel plan-form. The question as to whether these instabilities are driven by hydrological or anthropogenic influences is crucial to the decision on future development and how it should be managed.
Source: Informit Engineering Collection.
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